Token
Contributor
Is there a reason that a standard tank fill is 3000psi? Most air gauges go to 5000, and obviously, more air means more bottom time.
The reason I ask: On a recent dive, I was by far the biggest person on the boat. I weigh about 220lb, and everybody else was well under 200, including two women that probably weighed not much more than half what I do. As you might expect, I started to run low on air before everybody else, although I did make it through a 45 min dive with a decent safety margin. Would it not make sense to give the biggest guy/people on a dive party a tank with more air to forestall an early end to the dive? Would it be reasonable for me to request a 3500-4000psi tank to increase my bottom time, or is 3000psi an established safety practice?
The reason I ask: On a recent dive, I was by far the biggest person on the boat. I weigh about 220lb, and everybody else was well under 200, including two women that probably weighed not much more than half what I do. As you might expect, I started to run low on air before everybody else, although I did make it through a 45 min dive with a decent safety margin. Would it not make sense to give the biggest guy/people on a dive party a tank with more air to forestall an early end to the dive? Would it be reasonable for me to request a 3500-4000psi tank to increase my bottom time, or is 3000psi an established safety practice?